Meaning of echiuroid

ech•i•u•roid

Pronunciation: (ek"ē-yoor'oid), [key]
— n.
  1. any wormlike invertebrate of the phylum Echiuroidea, found in sand and mud of tropical and subtropical seas, having at the mouth a ciliated, often elongated prostomium.
—adj.
  1. belonging or pertaining to the Echiuroidea.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.